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Unread 03-02-2014, 08:50 PM   #1
cjjon7
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Nice Cage to Frame Tie In Ideas

Hey guys found this design over on Pirate 4x4 and liked it, wanted to spread the idea here. Looks really strong and has isolation due to the bushings, the only flaw may be rear tire rub in certain circumstances...

Post up your ideas for cage tie ins, could be a very useful thread to those looking to make their rigs more safe!

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Unread 03-03-2014, 11:24 AM   #2
Renegade82
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Never liked the idea of relying on the shear of a single bolt, unless it's 5/8" or larger.

Edit: I just realized too, after a second look, that's only held on to the welded plate by 6 small bolts with maybe 3/16" of thread engagement. And it also looks like tire clearance would be an issue the way it sticks out from the frame.
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Unread 03-03-2014, 12:05 PM   #3
cjjon7
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True. And thats why this thread is helpful!
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Unread 03-03-2014, 05:49 PM   #4
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Ok I'm guessing that is a yj by looking at the rear shackles but other than supporting the tub, what is this actually accomplishing. I may not be looking or thinking out of the box on this one but I just can't see the purpose on this mod.

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Unread 03-04-2014, 11:51 AM   #5
Renegade82
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Those are just boomerang shackles, which work on any vehicles. The frame looks modified so I'm not sure, but I assumed it was a Jeep sport bar, pre-81 that mounted to the top of the fenderwell. The purpose is to tie the sport bar to the frame, making it a roll bar. Otherwise, only the sheetmetal tub supports the bar. It has nothing to do with supporting the tub, though it does by proxy. The bushing is for isolating the frame vibration from the body, just as the body mounts do.
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Unread 03-07-2014, 06:49 PM   #6
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Thanks renegade for the explanation. Actually have looking at it I think it's a cj5. Don't they have the roll bar with the plate from the front bar to the rear bar. Seems like a good idea but like said before the clearance for tire tuck would be an issue.

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Unread 03-07-2014, 07:25 PM   #7
thantos858
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Quote:
Originally Posted by Mud Pilot View Post
Thanks renegade for the explanation. Actually have looking at it I think it's a cj5. Don't they have the roll bar with the plate from the front bar to the rear bar. Seems like a good idea but like said before the clearance for tire tuck would be an issue.

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The plate where that gets connected looks exactly like that. It holds the main hoop and the arms that go down to the back. As for the tuck it depends how much lift is on that rig but with mine it wouldn't hit with 31s and stock lift.
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Unread 06-29-2014, 08:44 PM   #8
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Today was Day 02 of a planned 3 day build of my full family friendly roll cage for the CJ, Lots of dang work! Here are some progress photos thus far, extremely happy with the turnout, only screwup that ive noticed is that my glovebox looks like it will be obstructed....My fault for not having put the dash on beforehand...think ill just remove the door if I have to have a shelf for crap.

...However if thats the only real mistake, I can live with it!

Want to put out a big recommendation to Dave and Sean from DSFabworx here in Pensacola FL for their skills and professionalism, couldnt be happier with the way they're handling the build.


Day 01
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Unread 06-29-2014, 09:02 PM   #9
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Day 02:

Rear Section completed, windshield V, and Front Seat mounts installed.
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Unread 06-29-2014, 09:04 PM   #10
cjjon7
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Day 02 continued:

Cage was designed to use a TJ Rampage Frameless Soft-top.
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Unread 06-30-2014, 11:20 AM   #11
Jim1611
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I've seen that C pillar tie in before and like the nice work that's put into it but that's as far as it goes for me. In a way it's a big hinge. If you roll end to end that's not going to stop the cage from giving way. That tie in will swing whichever direction the force makes it go. As I said it has some great work done to it but the design, to me, is not very good.

Here's some pictures of what I did. I tied the A pillar to my sliders that are bolted to the frame. Every point of connection has a bushing, YJ spring bushings. The B pillar is tied to the tub mounting bracket, had to make that bracket for the YJ tub anyway. The C pillar is like most others. I like the idea of using the bushings everywhere as that works with the body mount bushings. To mount the cage solid in affect makes the body bushings worthless since you've taken away the movement. Things have to flex and give otherwise you might see some cracks over time in the tub.









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Unread 06-30-2014, 08:02 PM   #12
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Quote:
Originally Posted by Jim1611
I've seen that B pillar tie in before and like the nice work that's put into it but that's as far as it goes for me. In a way it's a big hinge. If you roll end to end that's not going to stop the cage from giving way. That tie in will swing whichever direction the force makes it go. As I said it has some great work done to it but the design, to me, is not very good. Here's some pictures of what I did. I tied the A pillar to my sliders that are bolted to the frame. Every point of connection has a bushing, YJ spring bushings. The B pillar is tied to the tub mounting bracket, had to make that bracket for the YJ tub anyway. The C pillar is like most others. I like the idea of using the bushings everywhere as that works with the body mount bushings. To mount the cage solid in affect makes the body bushings worthless since you've taken away the movement. Things have to flex and give otherwise you might see some cracks over time in the tub.
I am confused on what the problem is with the cage.

You said you had seen the B pillar tie in before and that it would act like a hinge and then showed how you tied your frame in.

He is going to have 6 points where that cage will go through the body and tie into his frame and is talking about using the bushings as well.
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Unread 07-01-2014, 08:08 AM   #13
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Sorry for not checking what I wrote. When I mentioned the B pillar I should have typed C instead. That's the one I had the issue with, as far as the way it was attached in the photos.
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Unread 07-01-2014, 08:51 AM   #14
cjjon7
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There has since been two straight 1-3/4 tubes run between C and B along the tops of the fenderwells, as well as a lateral tube between the bottom of the C pillars acting as a rear seat support, not much structural addition from that one, but its something.
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Unread 07-01-2014, 12:13 PM   #15
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Quote:
Originally Posted by cjjon7
There has since been two straight 1-3/4 tubes run between C and B along the tops of the fenderwells, as well as a lateral tube between the bottom of the C pillars acting as a rear seat support, not much structural addition from that one, but its something.
That's what happens when someone starts talking out the side of their neck 1/2 through someone else's project.
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